I had to abstain from dairy, wheat, oats, tomatoes, apples, citrus, peanuts and seafood with DD and she is now allergy free.
I had ds tested very thoroughly and he is not allergic to formula but the doctor said that her testing showed that formula would prolong his illness but breast milk would help heal it. I tried therapies to cut down on my allergies b4 having ds, he is allergic to tomatoes, onions, milk, but not most other dairy, yeast, tea, garlic, coffee, mushrooms, oats, but not wheat.....I think it depends what you ate when pg.
And for the donating....I have to jump in here and say GOOD FOR YOU! That is really great.